fix a bug Alexei Svitkine pointed out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67510 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/System/Unix/Signals.inc b/lib/System/Unix/Signals.inc
index dc3910c..be22bd8 100644
--- a/lib/System/Unix/Signals.inc
+++ b/lib/System/Unix/Signals.inc
@@ -93,8 +93,8 @@
 static void UnregisterHandlers() {
   // Restore all of the signal handlers to how they were before we showed up.
   for (unsigned i = 0, e = NumRegisteredSignals; i != e; ++i)
-    sigaction(RegisteredSignalInfo[NumRegisteredSignals].SigNo,
-              &RegisteredSignalInfo[NumRegisteredSignals].SA, 0);
+    sigaction(RegisteredSignalInfo[i].SigNo,
+              &RegisteredSignalInfo[i].SA, 0);
   NumRegisteredSignals = 0;
 }